Taiwan has upgraded its growth forecast for 2021, predicting the economy this year could expand at the fastest rate in seven years — thanks to global semiconductor demand boosting exports from the island. Its economy is forecast to grow by 4.64% in 2021 from a year ago — making it the quickest expansion since 2014, according to data from the Taiwanese statistics bureau. Taiwan’s projected growth for 2021 is an upgrade of the previous forecast for a 3.83% expansion, and an acceleration from the revised growth of 3.11% for the whole of 2020, the bureau said on Saturday.